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Integration of second order partial derivative

  1. Nov 14, 2011 #1
    1. The problem statement, all variables and given/known data


    I have to solve a boundary condition problem but therefore I have to integrate a second order partial derivative. However, I don't know how to integrate the equation two times. Can someone explain this step by step how I get this solution?

    2. Relevant equations

    [itex]\int\frac{\partial^2u}{\partial y^2}= \int\frac{1}{\mu}\frac{\partial p}{\partial x}[/itex]

    3. The attempt at a solution
    [itex]u = \frac{1}{2\mu}( \frac{\partial p}{\partial x} ) y^2 + C1 y + C2[/itex]
  2. jcsd
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